A while ago you also mentioned this solution to me on the libOpenSmoke forum. However I think it is more appropriate to ask you here, since this is about the scalar solver. Can you share your solver with two different densities for the mixing of air and methane? As background, I want to model the mixing of a fuel (methane) with air.

Hi dear Tobias,
for an unsteady flow,are these schemes appropriate?is bounded scheme suitable for ddt(rho,gas)? the results seemed fine and now I noticed about maybe excess "bounded" term in schemes.are they OK in your opinion?

A while ago you also mentioned this solution to me on the libOpenSmoke forum. However I think it is more appropriate to ask you here, since this is about the scalar solver. Can you share your solver with two different densities for the mixing of air and methane? As background, I want to model the mixing of a fuel (methane) with air.

I would be very happy to test this solver, since it would help a lot to model a steady state mixing of gases with different densities. My main goal is to run combustion simulations (with the use of libOpenSmoke/ flameletSimple/PisoFOam). However as step before and to assess nozzle designs I would like to model fuel and air mixing without chemical reactions involved, for this the scalar solver could be very helpful, since steady state is almost the only option.

The simulations I am doing on real geometries are strictly confidential, so there is no way of sharing them . For the cold flow mixing I will also run some academic cases (when I have time...) and it should be possible to share some of those results.